FrameMaker Ver5.5E(PC) Di251/Di351 MECHANICAL/ELECTRICAL
.05.03.01
M-39
17. IMAGE TRANSFER AND PAPER SEPARATION
Image Transfer
• A charge is applied to the Image Transfer Roller to transfer the toner image formed on the
surface of the PC Drum onto the paper.
• To ensure that image transfer efficiency is stabilized, the image transfer current is auto-
matically varied according to the paper size, paper type, and the B/W ratio of the original.
• To prevent toner from sticking to the Image Transfer Roller, a negative image transfer
voltage is applied to the roller.
Paper Separation
• To neutralize any charge left on the paper, to which the image has been transferred, a
negative voltage is applied to the Charge Neutralizing Plate.
17-1.
PC Drum Paper Separator Fingers
• The PC Drum Paper Separator Fingers mechanically separate paper from the surface of
the PC Drum to ensure good and positive paper separation.
Electrical Component
Control Signal
ON
OFF
Wiring Diagram
Image Transfer Output
PJ15A-5/6A
L
H
6-E
PC Drum
Charge Neutralizing Plate
Image Transfer Roller
4011M012AA
PC Drum Paper Separator Fingers
PC Drum
PC Drum Protective Shutter
4011M013AA
Summary of Contents for Di251
Page 1: ...Di251 Di351 SERVICE MANUAL GENERAL 4011 7990 11 ...
Page 2: ...INDEX GENERAL GENERAL MECHANICAL ELECTRICAL ...
Page 3: ...GENERAL ...
Page 18: ...MECHANICAL ELECTRICAL ...
Page 24: ...M 4 3 DRIVE SYSTEM 1 Scanner Motor M10 2 Main Motor M2 3 I C Motor M1 1 3 2 4011M002AA ...
Page 71: ...Di251 Di351 SERVICE MANUAL FIELD SERVICE 4011 7991 11 ...
Page 83: ...Di251 Di351 Allgemein Mechanik Elektrik Rev 1 1 0 03 01 I 1 INSTALLATION 3 ...
Page 88: ...Di251 DI351 Rev 1 1 0 03 01 I 6 ...
Page 93: ...I 5 Di251 Di351 Rev 11 0 0 03 01 10 Grounding plate screws 3 1 2 3 4 5 6 7 8 9 10 ...
Page 99: ...I 11 Di251 Di351 Rev 11 0 0 03 01 6 Fit the Exit Tray 7 Close the Finisher Cover ...
Page 178: ...I 90 Di251 Di351 Rev 1 1 0 0 03 01 ...
Page 179: ...DIS REASSEMBLY ADJUSTMENT 10230 ...
Page 241: ...SWITCHES ON PWBs TECH REP SETTINGS 17196 ...
Page 296: ...TROUBLESHOOTING 14413 ...